Question

which mode of heat transfer need a medium
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Answer 1

Answer:

Radiation is the fastest because in this case, the transfer of heat takes place at the speed of light. Both conduction and convection need a material medium for the transfer for heat.

Answer 2

Explanation:

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MODES OF HEAT TRANSFER : There are three modes of heat transfer namely conduction, convection and radiation. Conduction : Conduction refers to the heat transfer that occurs across the medium. Medium can be solid or a fluid.

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